AD790 Fast, Precision Comparator
The AD790 is a fast (45 ns), precise voltage comparator, with a number of features that make it exceptionally versatile and easy to use. The AD790 may operate from either a single +5 V supply or a dual ±15 V supply. In the single-supply mode, the AD790's inputs maybe referred to ground, a feature not found in other comparators. In the dual-supply mode it has the unique ability of handling a maximum differential voltage of 15 V across its input terminals, easing their interfacing to large amplitude and dynamic signals.
The device is fabricated using Analog Devices' Complementary Bipolar (CB) process - which gives the AD790's combination of fast response time and outstanding input voltage resolution (1mV max). To preserve its speed and accuracy, the AD790 incorporates a "low glitch" output stage that does not exhibit the large current spikes normally found in TTL or CMOS output stages. Its controlled switching reduces power supply disturbances that can feed back to the input and cause undesired oscillations. The AD790 also has a latching function which makes it suitable for applications requiring synchronous operation.
The AD790 is available in five performance grades. The AD790J and the AD790K are rated over the commercial temperature range of 0°C to 70°C. The AD790a and AD790B are rated over the industrial temperature range of -40°C to +85°C. The AD790S is rated over the military temperature range of -55°C to +125°C and is available to MIL-STD-883B, Rev. C.
Features and Benefits- 45 ns max Propagation Delay
- Single 5 V or Dual ±15 V Supply Operation
- CMOS or TTL Compatible Output
- 250 µV max Input Offset Voltage
- 500 µV max Input Hysteresis Voltage
- 15 V max Differential Input Voltage
- Onboard Latch
- 60 mW Power Dissipation
- Available in 8-Pin Plastic and Hermetic Cerdip Packages
- Available in Tape and Reel in Accordance with EIA-481A Standard
| |
Data Sheets
Application Notes
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD790AQ Production | CERDIP GLASS SEAL | OTH 48 | -40 to 85C | 9.24 | 8.78 | N |
| AD790JN Last Time Buy | 8 ld PDIP | OTH 50 | 0 to 70C | 0 | 0 | N |
| AD790JNZ Production | 8 ld PDIP | OTH 50 | 0 to 70C | 4.54 | 4.08 | Y |
| AD790JR Production | 8 ld SOIC | OTH 98 | 0 to 70C | 0 | 0 | N |
| AD790JR-REEL7 Production | 8 ld SOIC | REEL 750 | 0 to 70C | 0 | 0 | N |
| AD790JRZ Production | 8 ld SOIC | OTH 98 | 0 to 70C | 4.54 | 4.08 | Y |
| AD790JRZ-REEL Production | 8 ld SOIC | REEL 2500 | 0 to 70C | 0 | 4.08 | Y |
| AD790JRZ-REEL7 Production | 8 ld SOIC | REEL 750 | 0 to 70C | 0 | 4.08 | Y |
| AD790SQ Production | CERDIP GLASS SEAL | OTH 48 | -55 to 125C | 22.31 | 21.2 | N |
Reference Materials
